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3 years ago

If polygon is not a square,then it is not a rectangle

Mathematics

2 answers:

Tamiku [17]3 years ago

4 0

True. A square can't be a rectangle, but a rectangle can be a square.

kotykmax [81]3 years ago

4 0

This statement is an example of a converse relationship, if that's what you're asking :)

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Manny can paint the office by himself in 5 hours. Dave can do the same job in 8 hours. How long will it take them to do it work

Alex Ar [27]

Answer:

3 hrs 4.6 mins

Step-by-step explanation:

1/5 + 1/8 = 1/x

x = 40/13

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2 years ago

Find the work done by the force field F(x, y) = xi + (y + 5)j in moving an object along an arch of the cycloid r(t) = (t − sin(t

Nimfa-mama [501]

Integrate the force field along the given path (call it C):

$W=\displaystyle\int_C\mathbf F(x,y)\cdot\mathrm d\mathbf r=\int_0^{2\pi}\mathbf F(x(t),y(t))\cdot\frac{\mathrm d\mathbf r}{\mathrm dt}\,\mathrm dt$

$=\displaystyle\int_0^{2\pi}\bigg((t-\sin t)\,\mathbf i+(6-\cos t)\,\mathbf j\bigg)\cdot\bigg((1-\cos t)\,\mathbf i+\sin t\,\mathbf j\bigg)\,\mathrm dt$

$=\displaystyle\int_0^{2\pi}(t-t\cos t+5\sin t)\,\mathrm dt=\boxed{2\pi^2}$

5 0

3 years ago

If f(x) = 4x-9, evaluate f(3) I need HELP ASAP!!!!!!!!!!!

seropon [69]

Answer:

substitute 3 as in x:

4(3)-9

= 12-9

= 3

Hope this helped - have a nice day & be safe

8 0

3 years ago

Then find the area S of the region. y=2 x^2, y^2=1/2 x

r-ruslan [8.4K]

Recall that the area under a curve and above the x axis can be computed by the definite integral. If we have two curves

y = f(x) and y = g(x)

such that

 f(x) > g(x)

then the area between them bounded by the horizontal lines x = a and x = b is

To remember this formula we write

3 0

3 years ago

(09.04 mc) a circle has its center at (−1, 2) and a radius of 3 units. what is the equation of the circle? (x − 1)2 + (y + 2)2 =

Reil [10]

General formula to make an equation of circle
(x - a)² + (y - b)² = r²

Given:
the center (a,b) = (-1,2)
the radius r = 3

Solution:
plug the numbers to the formula
(x - a)² + (y - b)² = r²
(x - (-1))² + (y - 2)² = 3²
(x + 1)² + (y - 2)² = 9
The answer is the last option

4 0

3 years ago

Read 2 more answers